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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Internal reinforcement for bolt through hollow tubing?
I am wondering if I need to use an internal reinforcement cylinder inside of
a section of steel square tubing. The square tubing in question is 2.5", with a wall thickness of 3/16". The fastener will be a 9/16" Grade 8 bolt, with a through hole of 5/8". I will also have a 1/4" section of plate outside of each side of the steel square tubing, with a width spanning the full distance of the flat side of the square tubing, from shoulder to shoulder (about 1.75" x 1.75"). Will I need to insert a piece of pipe inside of the steel square tubing to keep it from collapsing, or will the 1/4" plate on the outsides spread the load sufficiently? Thanks for any thoughts on this. Jon |
#2
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Internal reinforcement for bolt through hollow tubing?
"Jon Danniken" wrote in message ... I am wondering if I need to use an internal reinforcement cylinder inside of a section of steel square tubing. The square tubing in question is 2.5", with a wall thickness of 3/16". The fastener will be a 9/16" Grade 8 bolt, with a through hole of 5/8". I will also have a 1/4" section of plate outside of each side of the steel square tubing, with a width spanning the full distance of the flat side of the square tubing, from shoulder to shoulder (about 1.75" x 1.75"). Will I need to insert a piece of pipe inside of the steel square tubing to keep it from collapsing, or will the 1/4" plate on the outsides spread the load sufficiently? Thanks for any thoughts on this. Jon your design looks good to me. I do it that way all the time. |
#3
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Internal reinforcement for bolt through hollow tubing?
Karl Townsend wrote:
"Jon Danniken" wrote: I am wondering if I need to use an internal reinforcement cylinder inside of a section of steel square tubing. The square tubing in question is 2.5", with a wall thickness of 3/16". The fastener will be a 9/16" Grade 8 bolt, with a through hole of 5/8". I will also have a 1/4" section of plate outside of each side of the steel square tubing, with a width spanning the full distance of the flat side of the square tubing, from shoulder to shoulder (about 1.75" x 1.75"). Will I need to insert a piece of pipe inside of the steel square tubing to keep it from collapsing, or will the 1/4" plate on the outsides spread the load sufficiently? your design looks good to me. I do it that way all the time. Thanks Karl, that will save me a lot of trouble. Jon |
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